Development of barium and strontium fluoride multi-composite scintillation detection systems for neutrino experiments: COFE technology (Chemical Optical Fluoride Engineering)
D.V. FilosofovDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaK.V. AntokhinaDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaV. BelovDepartment of experimental physics, The Institute for Nuclear Research (INR) of the Russian Academy of Sciences, prospekt 60-letiya Oktyabrya 7a, Moscow, RussiaM. S. DovbnenkoDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaB.E. KalinovaDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaD. V. KaraivanovLaboratory of Positron Spectroscopy, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee Blvd., Sofia, BulgariaS. KazartsevDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaA. KlimenkoDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaA. KuznetsovInstitute for Nuclear ResearchN.A. MirzayevDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaDmitry PonomarevDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaA. V. RakhimovDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaS.V. RozovDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaMartin TsvetkovDepartment of Inorganic Chemistry, Faculty of Chemistry and Pharmacy, University of Sofia St. Kliment Ohridski, 1 James Bourchier Blvd., Sofia, BulgariaE. ShevchikDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaM. ShirchenkoDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaN.T. TemerbulatovaDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaV. TimkinDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaA. VelichkovDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaMaria VorobyevaDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaI. ZhitnikovDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, RussiaE. YakushevDepartment of Nuclear Spectroscopy and Radiochemistry, Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 20 Jolio-Curie, Dubna, Russia
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Abstract
Abstract It is presented the design of a compact neutrino detector based on composite scintillation materials devoted for high-efficiency detection of positron, both annihilation gamma quanta and neutron after the reaction of inverse beta-decay. The detector utilizes a combination of barium fluoride (BaF 2 ) mini crystals, hydrogen-containing glycerol as a medium for the reaction, and neutron-absorbing additives such as gadolinium fluoride (GdF 3 ) or cadmium chloride (CdCl 2 ). The design is optimized to achieve compatibility in refractive indices between scintillation components and the medium, enhancing light collection. Over 30 composite systems were assembled and characterized for light output efficiency using a 137 Cs gamma source. Results demonstrate that these systems successfully detect gamma radiation up to 500–600 keV and show potential for future neutrino registration.
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